Задание 4 (Функции комплексного аргумента)

>>Z = 5.6 - 4*i

Z =

5.6000 - 4.0000i

>>imag(Z)

ans =

-4

>>real(Z)

ans =

5.6z

>>conj(Z)

ans =

5.6000 + 4.0000i

Задание 5 (Тригонометрические и обратные им функции)

>>u=[1 1.3 0.5 11; 0.3 7 3 -1.5; 4 9 93 3; 1 2 3 4]

u =

1.0000 1.3000 0.5000 11.0000

0.3000 7.0000 3.0000 -1.5000

4.0000 9.0000 93.0000 3.0000

1.0000 2.0000 3.0000 4.0000

>>acos(u)

ans =

Columns 1 through 3

0.0000 + 0.0000i 0.0000 + 0.7564i 1.0472 + 0.0000i

1.2661 + 0.0000i 0.0000 + 2.6339i 0.0000 + 1.7627i

0.0000 + 2.0634i 0.0000 + 2.8873i 0.0000 + 5.2257i

0.0000 + 0.0000i 0.0000 + 1.3170i 0.0000 + 1.7627i

Column 4

0.0000 + 3.0890i

3.1416 - 0.9624i

0.0000 + 1.7627i

0.0000 + 2.0634i

>>acot(u)

ans =

0.7854 0.6557 1.1071 0.0907

1.2793 0.1419 0.3218 -0.5880

0.2450 0.1107 0.0108 0.3218

0.7854 0.4636 0.3218 0.2450

>>acsc(u)

ans =

Columns 1 through 3

1.5708 + 0.0000i 0.8776 + 0.0000i 1.5708 - 1.3170i

1.5708 - 1.8738i 0.1433 + 0.0000i 0.3398 + 0.0000i

0.2527 + 0.0000i 0.1113 + 0.0000i 0.0108 + 0.0000i

1.5708 + 0.0000i 0.5236 + 0.0000i 0.3398 + 0.0000i

Column 4

0.0910 + 0.0000i

-0.7297 + 0.0000i

0.3398 + 0.0000i

0.2527 + 0.0000i

>>asec(u)

ans =

Columns 1 through 3

0.0000 + 0.0000i 0.6932 + 0.0000i 0.0000 + 1.3170i

0.0000 + 1.8738i 1.4274 + 0.0000i 1.2310 + 0.0000i

1.3181 + 0.0000i 1.4595 + 0.0000i 1.5600 + 0.0000i

0.0000 + 0.0000i 1.0472 + 0.0000i 1.2310 + 0.0000i

Column 4

1.4798 + 0.0000i

2.3005 + 0.0000i

1.2310 + 0.0000i

1.3181 + 0.0000i

>>ans =

Columns 1 through 3

1.5708 + 0.0000i 1.5708 - 0.7564i 0.5236 + 0.0000i

0.3047 + 0.0000i 1.5708 - 2.6339i 1.5708 - 1.7627i

1.5708 - 2.0634i 1.5708 - 2.8873i 1.5708 - 5.2257i

1.5708 + 0.0000i 1.5708 - 1.3170i 1.5708 - 1.7627i

Column 4

1.5708 - 3.0890i

-1.5708 + 0.9624i

1.5708 - 1.7627i

1.5708 - 2.0634i

>>atan(u)

ans =

0.7854 0.9151 0.4636 1.4801

0.2915 1.4289 1.2490 -0.9828

1.3258 1.4601 1.5600 1.2490

0.7854 1.1071 1.2490 1.3258

>>cos(u)

ans =

0.5403 0.2675 0.8776 0.0044

0.9553 0.7539 -0.9900 0.0707

-0.6536 -0.9111 0.3174 -0.9900

0.5403 -0.4161 -0.9900 -0.6536

>>cot(u)

ans =

0.6421 0.2776 1.8305 -0.0044

3.2327 1.1475 -7.0153 -0.0709

0.8637 -2.2108 -0.3347 -7.0153

0.6421 -0.4577 -7.0153 0.8637

>>csc(u)

ans =

1.1884 1.0378 2.0858 -1.0000

3.3839 1.5221 7.0862 -1.0025

-1.3213 2.4265 -1.0545 7.0862

1.1884 1.0998 7.0862 -1.3213

>>sec(u)

ans =

1.8508 3.7383 1.1395 225.9531

1.0468 1.3264 -1.0101 14.1368

-1.5299 -1.0975 3.1503 -1.0101

1.8508 -2.4030 -1.0101 -1.5299

>>sin(u)

ans =

0.8415 0.9636 0.4794 -1.0000

0.2955 0.6570 0.1411 -0.9975

-0.7568 0.4121 -0.9483 0.1411

0.8415 0.9093 0.1411 -0.7568

>>tan(u)

ans =

1.5574 3.6021 0.5463 -225.9508

0.3093 0.8714 -0.1425 -14.1014

1.1578 -0.4523 -2.9874 -0.1425

1.5574 -2.1850 -0.1425 1.1578